CVE-2020-12519

Name: CVE-2020-12519
Creator: NVD / NIST
Published: 2020-12-17T23:15:13.06+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 0.85%

Last modified Jun 17, 2026

CVE-2020-12519 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. On Phoenix Contact PLCnext Control Devices versions before 2021.0 LTS an attacker can use this vulnerability i.e. to open a reverse shell with root privileges.. EPSS estimates a 0.85% chance of exploitation in the next 30 days.

Description

On Phoenix Contact PLCnext Control Devices versions before 2021.0 LTS an attacker can use this vulnerability i.e. to open a reverse shell with root privileges.

Metrics

CVSS 3.1

9.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

0.85%

53.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Phoenixcontact	Plcnext Firmware	< 2021.0

References

https://cert.vde.com/en-us/advisories/vde-2020-049Third Party Advisory
https://cert.vde.com/en-us/advisories/vde-2020-049Third Party Advisory

Timeline

Published: Dec 17, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-12519?

On Phoenix Contact PLCnext Control Devices versions before 2021.0 LTS an attacker can use this vulnerability i.e. to open a reverse shell with root privileges.

How severe is CVE-2020-12519?

CVE-2020-12519 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 0.85% probability of exploitation in the next 30 days.

How do I fix CVE-2020-12519?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-12519?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST